Safety supply-box and powder-magazine.



T. DOYLE.

SAFETY SUPPLY BOX AND POWDER MAGAZINE.

APPLICATION FILED DEG.19, 1911.

I Patented Feb. 18, 1913.

2 SHEETS-SHEET l.

T. DOYLE.

SAFETY SUPPLY BOX AND POWDER MAGAZINE.

APPLIUATION FILED DEG.19, 1911.

Patented Feb. 18, 1913.

2 SHEETSSHEET 2.

THOMAS DOYLE, OF ELDORADO, ILLINOIS.

SAFETY SUPPLY-BOX AND POWDER-MAGAZINE.

Application filed December 19, 1911.

To all whom it may concern:

Be it known that I, THOMAS DOYLE, a citizen of the United States ofAmerica, residing at Eldorado, in the county of Saline and State ofIllinois, have invented new and useful Improvements in Safety Supply-Boxes and Powder-Magazines, of which the following is a specification.

The present invention relates to safety powder magazines and supplyboxes designed for use in mines.

In carrying out the present invention, it is my purpose to provide asafety powder magazine or supply box which shall be absolutely fireroof, and at the same time render the filling of the cartridges orshells, used in the mining industry, easy and safe in loading.

Furthermore, I aim to provide a device of this character which shallinclude among other features a powder magazine capable of containing aquantity of powder and adapted to feed or discharge the same into thecartridge or shell in such a manner as to prevent the ignition of thepowder accldentally.

The invention has for another object the provision of a powder magazinewhich shall render the feeding of the powder automatic and direct thesame into the cartridge or shell without permitting the powdercontacting with the atmosphere.

With the above and other objects in view which shall appear as thedescription progresses, the invention consists in the construction,combination and arrangement of parts hereinafter set forth in andfalling within the scope of the appended claims.

In the accompanying drawings wherein has been illustrated the preferredembodiment of the invention; Figure 1 is a front elevation of a safetysupply box constructed in accordance with the present invention. Fig. 2is a transverse section on the line 22 of Fig. 1. Fig. 3 is a brokenperspective view showing the interior of the box. Fig. 4 is a detailperspective view of the powder magazine. Fig. 5 is a broken sectionalview of a part of the magazine, and Fig. 6 is a perspective View of thedetail of the invention.

The loss of life and limb and other disastrous results are often broughtabout in the mining industry in the filling of blasting cartridges.Heretofo-re, in the filling or Specification of Letters Patent.

Patented Feb. 18, 1913.

Serial No. 666,772.

charging of blasting cartridges, the powder has been poured into thesame in an open manner thereby rendering the powder liable to explosionincident to the proximity of the miners lamp and electric spark origniting devices which are at all times lying promiscuously about themine shafts and levels where the charging of the cartridges is carriedon by the miners for blasting purposes. By means of my invention, thesedangers are eliminated and the powder is fed from the magazine into thecartridge or shell, in what may be termed, a closed condition, that isthe charging of the cartridges may be carried on without permitting thepowder passing through the atmosphere, or what is usually termed an airgap, previous to its entering the cartridge.

Referring to the drawings in detail in which similar referencecharacters designate like parts throughout the several views, the supplybox, in the present instance, consists of a substantially rectangularreceptacle 1 provided with hooks or other suitable fastening devices 2so that the box may be sup ported in a convenient position within themine. This box 1 may be constructed of steel or any other materialsuitable for the purpose and is preferably lined interiorly withasbestos to render the same fire proof. One side of the box 1 provides amagazine compartment in which is secured a powder magazine or container3 which latter is also rendered fire proof by means of any suitablematerial and has its upper end flanged as at 4 to receive bolts or otherfastening devices so that the powder magazine may be supported withinthe box 1 and suspended from the top wall thereof. The upper ends of thewalls of the powder magazine 3 are preferably beveled inwardly of thepowder magazine as at 5 so as to receive a correspondingly shaped cover6 pivotally connected to the upper wall of the receptacle 1 through themedium of hinges 7 and designed to be fastened to the receptacle bymeans of a suitable locking mechanism so as to close the powdermagazine, the cover 6 being rendered fire proof as are all other exposedparts of the box. The powder magazine 3 is provided with a taperingbottom 8 having a discharge opening controlled by a slide 9 which, inthe present instance, is movable laterally of the powder magazine andadapted to slide in suitable guide ways 10 formed upon the oppositesides of the discharge opening of the said magazine. This slide 9normally closes the discharge opening of the magazine and is designed tobe operated manually to facilitate the discharging of' powder from themagazine. In the device illustrated, the slide 9 is actuated to itsnormal or closed position through the medium of a plurality of yieldableelements 11 which act upon the slide to close the discharge opening, thesaid slide being provided with a suitable handle 12 so that the same maybe slid outwardly of the guides 10, to permit the flow of powder fromthe magazine, against the action of the yieldable elements 11. The lowerextremity of the tapering bottom 8 of the magazine terminates a suitabledistance above the lower wall of the receptacle 1 and is provided with alaterally projecting flange 13 adapted to slidably receive a plate 1 1having a conveniently located opening 15 arranged in alinement with thedischarge opening of the magazine and designed to have communicationtherewith in the outward movement of the slide. The edges of the plate14 are bent upon themselves to provide grooves 16 adapted to receive theflange 13 so that the plate 14: may be operatively associated with thebottom of the magazine. Connected to the lower surface of the plate 1 1and in open communication with the opening 15 therein, is a powderconveying tube 17 arranged at a downward inclination to the plate andterminating exteriorly of the receptacle 1 so that in the opening of theslide, powder may be discharged from the magazine and gravitate throughthe tube 17 and into a cartridge or shell. The free extremity of thetube 17, that is the end of the tube projecting beyond the casing 1, isof such diameter as to enable a cartridge or shell to be positionedthereon so that the powder is fed directly from the magazine into thecartridge thereby insuring safety and eliminating the passage of thepowder through an air gap. The cartridge-receiving end of the tube 17may be constructed of glass or other suitable transparent material, ifsuch is desired, to enable the miner to gage the amount of powder beingfed to thecartridge, or if it is deemed desirable, the slide 9 may beconstructed in a manner to permit the feeding of a predetermined amountof powder from the magazine. By virtue of this structure, it will beseen that the powder is fed automatically to the cartridge and directlyinto the same thereby obviating dangers from miners lamps ignitingdevices and the like, in'the charging of the cartridge. The oppositeside of the receptacle 1, that is the interior of the receptacleadjacent the powder magazine, is designed to hold paper, or othersuitable material, used for retaining the powder within the cartridge,and as shown this side of the receptacle is provided with a dependingbracket 18 between which and the end of the receptacle is supported aroll of paper 19.

Conveniently supported within the receptacle, in proximity to the rollof paper, is a knife 20 secured at one end to the bracket 18 and havingits opposite end fastened to the end wall of the casing -1. An auxiliaryroll of paper 21 may also be supported in suitable brackets within thereceptacle, if such is deemed desirable.

The front wall of the receptacle 1, at one side of the magazinereceiving portion of the said receptacle is provided with an enlargedopening 22 designed to permit access to the interior of the receptacleand through which the slide 9 may be operated for the purpose described.This opening 22 is preferably closed through the medium of a hinged door23 adapted to be securely fastened in its closed position through themedium of a hasp 24 hingedly connected to the top of the receptacle 1and extending the full height of one side thereof and around and on tothe bottom of the receptacle where it is locked in any suitable manner,thus securely holding the door in closed position.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of themethod of operation will be readily apparent to those skilled in the artto which the invention appertains, and while I have described theprinciple of operation of the invention, together with the device whichI now consider to be the best embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative, and that suchchanges may be made when desired as are within the scope of the claimsappended hereto.

I claim:

1. A device of the class described comprising a receptacle, a powdermagazine within the receptacle, an inclined powder conveying tube, adetachable connection between said conveying tube and powder magazine,means for controlling communication between the powder conveying tubeand the powder magazine, said powder conveying tube extending outwardlyof the receptacle and being provided with a cartridge receiving portionwhereby the powder may be supplied to the cartridge in an air-tightcondition.

2. A device of the class described comprising a receptacle, a powdermagazine within the receptacle and provided with a tapering bottomhaving a discharge opening, the walls of such discharge opening beingprovided with guide ways, flanges formed integral the said magazineadjacent the discharge opening therein, an inclined powder conductingtube, a plate integral with said conducting tube and provided withgrooves adapted to receive said flanges whereby the powder conductingtube may be and normally holding the slide in closed 10 connected to themagazine, said tube extendposition. ing outwardly from one side of therecep- In testimony whereof I afiix my signature gacle, a slide forcontrolling communicatiog in presence of two witnesses.

etween said powder conducting tube an magazine and mounted within theguide- THOMAS DOYLE ways formed in the walls of the discharge opening ofthe magazine, and yieldable elements connected to said slide andmagazine Witnesses Nnw'r MURPHY, GUY ROBERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

